(NnARODNAQ RESPUBLIKA bOLGARIQ (B:s ((NkRATKIJ SPRAWO^NIK(B).s ((Nb(B. (NM(B. :s (Nb(B. (NI(B.,s, 1965)
Keywords: (NbOLGARIQ (B- (NsPRAWO^NIKIs